Erfurt Declaration

Download the Erfurt Declaration as pdf.



This declaration was submitted during the International Conference of the COmpetence NeTwork URban ECcology (CONTUREC) “Urban biodiversity and design – Implementing the Convention on Biological Diversity in towns & cities” 21. - 24. May 2008, Erfurt, Germany


1. Preamble

The increasing urban population, climate change and loss of biodiversity are all strongly connected. With two-thirds of a considerably larger world population predicted to be living in urban areas by 2050, the “Battle for life on Earth” will be lost or won in urban regions.

The role of urbanisation in the loss and degradation of global biodiversity was acknowledged in the local Agenda 21 processes and in the Convention on Biological Diversity (CBD) in 1992 and has been discussed in the subsequent eight Conferences of the Parties. Whilst cities pose major challenges for protecting biodiversity, the opportunities they offer have, so far, been understated.


A major step toward recognizing the potential of cities for biodiversity was made in Curitiba (Brazil) in March 2007, when a global partnership in “Cities and Biodiversity” was initiated by 34 mayors and numerous high level officials from cities across all continents in order to engage local authorities to protect and sustain their unique contribution to global biodiversity.

From the 21st to 24th May 2008 in Erfurt (Germany) 400 scientists, planners and other practitioners from around 50 countries summarized for the first time in a global context the current scientific and practical approaches of implementing the CBD in urban areas. This declaration reflects the views of the participants at the “Urbio 2008” conference that urban biodiversity is a vital part of achieving the aims of the Convention on Biological Diversity.


2. The importance of urban biodiversity

Urban biodiversity is the variety and richness of life including genetic, species and habitat diversity found in and around towns and cities.

During our “Urbio 2008” conference we discussed the current state of knowledge and practice in “urban biodiversity”. The contributions at the conference demonstrated clearly the range of different approaches necessary to understand the importance and function of urban biodiversity and to bring these into local practice. The approaches are:

Towns and cities are both important experimental areas and fields of experience in the interrelationship between humans and nature.


The case for urban biodiversity in relation to the aims of the CBD is compelling:

Experiencing urban biodiversity will be the key to halt the loss of global biodiversity, because people are more likely to take action for biodiversity if they have direct contact with nature.


3. Challenges for the future

Halting the global loss of biodiversity and ensuring all our cities are green, pleasant and prosperous places requires:

Initiating new programs of activities concerning “Cities and Biodiversity” within the CBD would provide the mechanism needed to tackle these challenges.


To address these issues requires the following tasks and responsibilities:  

As a community of urban biodiversity professionals we will especially support further CBD initiatives on “Cities and Biodiversity” through:


On behalf of the


International Conference of the COmpetence NeTwork URban ECcology (CONTUREC)

“Urban biodiversity and design – Implementing the Convention on Biological Diversity in towns and cities”, 21. - 24. May 2008, Erfurt, Germany


Prof. Dr. Norbert Müller (Conference Chief Organizer), University of Applied Sciences Erfurt, Leipziger Str. 77, 99084 Erfurt, Germany (corresponding author)

David Knight (Conference Organizer), Natural England, Wakefield, United Kingdom

Peter Werner (Conference Organizer), Institute Housing & Environment, Darmstadt, Germany



Download the Erfurt Declaration as pdf.


Image: Logo Erfurt 2008 Biodiversity ConferenceImage: CBD Logo
Image: Erfurt 2008 Urban Biodiversity Conference